<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"
          integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB"
          crossorigin="anonymous">
</head>
<body>

<!-- {% include "header.html" %} -->

    <hr>

    {% block content %}{% endblock %}

    <hr>

<!-- {% include "footer.html" %} -->

</body>
</html>